Home / 21,247.04-29,319.67-12,293.91

Finding the Fourth Proportional to 21,247.04, 29,319.67 and 12,293.91

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Solution

The fourth proportional to 21,247.04, 29,319.67 and 12,293.91 is: 16,964.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,247.04 : 29,319.67 = 12,293.91 : x
  2. Step 2: Convert to fraction form
    21,247.04/29,319.67 = 12,293.91/x
  3. Step 3: Cross multiply
    21,247.04x = 29,319.67 × 12,293.91
  4. Step 4: Simplify right side
    21,247.04x = 360,453,399.58
  5. Step 5: Solve for x
    x = 360,453,399.58/21,247.04
  6. Step 6: Final answer
    x = 16,964.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.